Water silencer



IAA/EA/Kroe B. QGRAHAM WATER SILENCER Filed Feb. 4. 1945 EMmm/v 0. GRAHAM May 29, 1945.

Patented May 29, 1945 UNITED STATES rATENT OFFICE f WATER SILENCER Benjamin O. Graham, St. Louis, Mo.

Application February 4, 1943, Serial No. 474,695

3 Claims.

This invention relates generally to water-silencers and, more particularly, to a certain new and useful improvement in water-silencers especially, though not exclusively, adapted for use in connection with flush tanks.

My invention has for its chief object the provision of a structure that may be economically constructed, which may be conveniently installed, which comprises few readily assembled parts, which is automatic and durable, and which is efficiently operable in greatly reducing the usual disagreeable noises attendant upon the refilling of ilush tanks and the like.

And with the above and other objects in View, my invention resides in the novel features of form, construction, arrangement, and combination of parts presently described and pointed out in the claims.

In the accompanying drawing,

Figure l is a fragmentary vertical sectional view of a toilet iiush tank equipped with a water-silencer constructed in accordance with and embodying my invention;

Figure 2 is an enlarged longitudinal sectional view of the silencer; and

Figure 3 is a transverse sectional view of the silencer taken approximately on the lines 3 3, Figure 2.

Referring now more in detail and by reference characters to the drawing, which illustrates a preferred embodiment of my present invention, A designates a flush-tank of any approved or standard type, suitably mounted and extending vertically through the bottom wall I of which is a water inlet-pipe 2.

suitably seated or mounted on pipe 2 within the confines of the tank A, is a valve-body B having a discharge outlet, as at 3, and which is suitably equipped with a valve C adapted for actuation to inlet closure position by suitable ball-cock mechanism D, as will be well understood, the valve C moving to closure position as the ball 4 moves upwardly and automatically moving to open position as the ball 4 moves downwardly as the Water, respectively, discharges from, or enters into, tank A.

The discharge of Water from the outlet 3 into the tank A is usually accompanied by more or less noise varying with the pressure of the discharging water, and for the quieting or elimination of such noise I provide the unique silencer best seen in Figures 2 and 3.

As there shown, the silencer comprises a tubular closure member E externally threaded at its upper end, as at 5, for communicating connection with the outlet 3 of valve-body B and closed at its other or opposite end by an end wall 6 and of selected length to extend from valve-body outlet 3 to closely adjacent the tank bottom wall I. Adjacent its threaded upper end 5, the member E is annularly enlarged and of hexagonal or other out-of-round conformation, as at l, for convenient wrench-engagement, and formed with an end-opening annular recess having an outer wall threaded on its inner face, as at 8, for engagement with the threaded upper end of a suitably elongated tubular member F, the member E, at the base of its said recess, providing a cap or closure for the one or upper end of the tubular member F.

Also forming part of the silencer, is a second tubular closure member G substantially identical in structure with, but preferably of somewhat shorter length than, the member E and similarly including a suitably elongated tubular body-portion having a closed upper end, as at 9, and open at its opposite or outlet end, as at IB, and formed adjacent its outlet end I0 with a second cap II having a hexagonal or other out-of-round conformation for convenient wrench-engagement and having an annular inner wall threaded, as at I2, for connection with the threaded opposite or lower end of the tuular member F, the cap I I, at the inner face of its end-wall I3, similarly providing a closure for the lower end of the tubular member F.

Each of the members E and Gis provided in its periphery and within the confines of the member F with a plurality of annular series of suitably spaced orifices or openings i4, the orifices of one series being preferably staggered with relation to the orifices of adjacent series, as best seen in Figure 2. Preferably, while not here speciically shown, the combined area of all the openings or orifices I4 of each respective member E and G is equal to, or somewhat greater than, the cross sectional area of such respective member E or G, so as to permit the free flow of water into and from the tube F.

Accordingly, in use and operation, the water discharging from the outlet 3 ows into the member E, then discharges through the upper apertures or orifices Id into the tubular member F. and from the tubular member F passes through the lower orifices I4 into the opposite member G, and thence through outlet Ill into the tank A.

The opposing closed-end spaced members E and G and their connecting or joining member F thus cooperate in the formation of a tortuous path for water flow through the silencer and function very eiliciently in reducing, to a large extent, the noise usually incident to the reilling of the tank A, the selected elongation of the silencer, so that its discharge-end is more or less quickly immersed in the tank refillingv water, augmenting such silencing effect.

The parts of the silencer may be disassembled for cleaning and repair and as readily again reassembled, and it should be understood that changes and modifications in the form, construction, arrangement, and combination of the several parts of the silencer may be made and substituted for those herein shown and described Without departing from the nature and principle of my invention.

Having thus described my invention, what I claim and desire to secure by Lettres Patent is:

1. A water-silencer comprising an elongated tubular member` provided at its opposite ends with closure members having tubular portions extending therethrough, said portions being of substantially smaller diametrical size than the tubular member and projecting at one end co-axially inwardly into the tubular member and at the other end outwardly for respectively forming a water inlet and a water outlet, said tubular portions being provided along their inwardly projecting ends with a plurality of radial orices and terminating Within the tubular member in solid end walls, said end Walls being spaced from each other to provide, Within the tubular member, an intermediate section through which water may pass in uninterrupted ow across the entire cross-sectional area of the tubular member.

2. A Water-silencer comprising an elongated tubular member provided at its opposite ends with closure members having tubular portions extending therethrough and projecting at one end inwardly into the tubular member and at the other end outwardly for respectively forming a Water inlet and a water outlet, each of said tubular portions being provided along its inwardly projecting end with a plurality of orices having an aggregate area greater than the cross-sectional area of the tubular portion and terminating within the tubular member in a solid end wall, said end walls being spaced from each other to provide, within the tubular member, an intermediate section through which water may pass in uninterrupted flow across the entire cross-sectional area of the tubular member.

3. A water-silencer comprising an elongated tubular member provided at its opposite ends with closure members respectively having an inlet and an outlet pipe extending therethrough in concentric relation to, and being of substantially smaller diametrical size than, the tubular member, said pipes projecting for different distances into the tubular member, being provided along such inwardly projecting ends with a plurality of radial orices and terminating in solid end walls, said end walls being spaced from each other to provide, within the tubular member, an uninterrupted intermediate section.

BENJAMIN O. GRAHAM. 

